<div style="padding: 100px"
     class="menu">
    <table style="padding: 20px; width: 100%">
        <tr>
            <td>
                <a href="tweets.php"><span class="tweets">Tweets</span></a>
            </td>
            <td>
                <a href="images.php"><span class="imagenes">Imagenes</span></a>
            </td>
            <td>
                <a href="index.php"><span class="videos">Videos</span></a>
            </td>
            <td>
                <a href="index.php"><span class="contacto">Contacto</span></a>
            </td>
        </tr>
    </table>
</div>